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2 years ago

Values for the area A of the rectangle shown are 30 SA < 60. Write and solve

Mathematics

1 answer:

Maurinko [17]2 years ago

6 0

Answer:

Nothing further can be done with this topic. Please check the expression entered or try another topic.

Step-by-step explanation:

5X + 3

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An urn contains 5 red balls and 2 green balls. Two balls are drawn one after the other. What is the probability that the second

AleksAgata [21]

Answer:

<em>The probability that the second ball is red is 71%</em>

Step-by-step explanation:

<u>Probabilities</u>

We know there are 5 red balls and 2 green balls. Let's analyze what can happen when two balls are drawn in sequence (no reposition).

The first ball can be red (R) or green (G). The probability that it's red is computed by

$\displaystyle P(R)=\frac{5}{7}$

The probability is's green is computed by

$\displaystyle P(G)=\frac{2}{7}$

If we have drawn a red ball, there are only 4 of them out of 6 in the urn, so the probability to draw a second red ball is

$\displaystyle P(RR)=\frac{5}{7}\cdot \frac{4}{6}=\frac{10}{21}$

If we have drawn a green ball, there are still 5 red balls out of 6 in the urn, so the probability to draw a red ball now is

$\displaystyle P(GR)=\frac{2}{7}\cdot \frac{5}{6}=\frac{5}{21}$

The total probability of the second ball being red is

$\displaystyle P(XR)=\frac{10}{21}+\frac{5}{21}=\frac{5}{7}=0.71$

The probability that the second ball is red is 71%

7 0

3 years ago

The measures of two angles in a triangle are 48° and 71°. What is the measure of the third angle?

qaws [65]

61. 180 minus 71 minus 48 is 61

3 0

3 years ago

Read 2 more answers

Answer the question.

olga nikolaevna [1]

1 5/8 board will be left!

6 0

2 years ago

Write an explicit formula for the arithmetic sequence whose common difference is -18

drek231 [11]

Let the first term be a(0). Then the formula for a(n) is a(0)-18(n-1).

Check: What's the first term? Let n = 1: a(1) = a(0)-18(1-1) = a(0) (correct)

What's the second term? Let -n =2: a(2) = a(0)-18(2-1) = a(0) - 18

and so on.

7 0

2 years ago

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If LK is congruenat to MK, LK=7x-10, KN=x+3, MN=9x-11, and KJ=28, find LJ

Juliette [100K]

Answer:

Step-by-step explanation:

Xqual-5

4 0

3 years ago